Shuttle



Sept. 7 1926. 1,599,217

` J. B. DAUDELIN SHUTTLE Filed Feb. 27, 1926 Patented Sept. 7, 1926K.

4iiN'lrED STATES P-ATENT'i-Of JEAN BAPTISTE DAUDELIN, or FALL MYER,- MAsvsAcnUsnTTs.

SHUTTLE.

Application filed February 27'; ieee. serial No. 91h44..,v

This invention relates tovhand threading loomy shuttlesfand particularly to a threadtensioning 'device therefor. According to my Vrgeneral-concept7 the tensioning device is constructedv asa gravita-ting member'underV which the thread is drawn andby which a uniform tension is -maintained thereon. l Structurally, my vtension device may take a variety of forms and may be either combined with the eye-piece of thevthreading eye or maybe used independentlythereof, both arrangements being shown herein `for purposes of'disc'losure.vv r I "l My invention also involves certain" *imf provements in the construction of the eye'- of va standard shuttle equipped in accord-v ance with my invention.

" Fig. 2 isa section on the line 2;2, of

F ig.` 3 is a detail view of the eyefpiece for thethreading eye, removed.

. Fig. Il is a detail` view of the gravitating tensioning device removed,v f i Fig. 5 -is a detail view of the cooperatingv i tension plate used ini-the shuttle shown: in

' -ifi Fig. l, and n v l y Fig. 6 is a view similarto Fig. 1 and showing a modification.y

I-have indicated at'l the body of 'a hand-l threading loom shuttle of conventionalv type7 y Aat '2. the bobbin chamber thereof, -at 3 the shuttle throat, and at 4 thev curved thread' slot which extendsv frommthe bobbin chamber forwardly Vacross the upper face of the shuttle and backwardly 'along the sidey wall of the slot and into the delivery end of the threading eye 5 of the shuttle.

The eye 5 is a cylindrical bore extending transversely of the shuttle throat. The

wood of the shuttle at thatside of the eye farthest removed from the bobbin chamber is counterbored to provide a keyway disposed parallel to the vthreading eye and eX- Vlrlikel vitreous lmaterial* which is f hardv land of the'eye.y f n After the shuttle is threaded, the ltension Vis-maintained on the thread as it 'draws i thread being run. j

tending transversely ofthe shuttlel throat. y Pressiittedfwithin the eye bore 5 is ian eye-piece, 7 which may lber of any desired" material?,"butv is preferably of porcelain. or

non-grooving. The'eye-'piece'` is shaped to fit vthe eye snugly at one end andis loose'i'n the eye at its other" end. This reducesthe danger ofthe eye-piece beii'ig'broken-in the 'i 65 -the eye-piece were to fit the eye snugly from A' operation of the shuttle, as wouldA occur if ,endV to end thereof. t

In order to prevent rotation-ofl thei'eye- 4piece in the eye, said'piece Vis providedwith a longitudinallyextendingrib 8 which fits within the counter-bore ofthe eye-and keys the' .eye-piece within the eye. *This rib;8is interrupted between its ends by Va notch' ,9;

f rIfhe upperside of thfeeyepieceV is preferablyl cut 'away between its ends'fto fpern'iitgdirect -vpassage of thethread T* from lthe bobbin chamber linto tlie'notchv 9 when the shuttle is being threadedgf The-notch@ cominunicates `with adownwardly andf'outwardly eX- tending` slot l0 disposedfonthe-under 'side of 4the veye-piece A andfextending longitudinallyalong the Veyepiece tothe deliveryl end u from vthe .bobbin `through the eye-piece, by

means ,of a gravitating tension device Il which maybe eitherl set in the shuttle throat in advance of the -eye-pie'ce,?as "shown" in Figs. 1` Vand 2, or may be positionedjdirectly over the` eye-pieceyas shown` in ]1`ig.-6'.l Referringirst to thel form `of. tensioning de! vice shown in Figs. l and 2,' II 'preferably inteipose between theV tensioning device' 11 and the Hoor of theshuttle throatV a tension plate 12 which may be of glassorany other vitreous', -non-grooving material.- lVhere desired, one face ofi the wear/platey may be rougheiied and theeother face v'lefif'sinoothf so that by reversing tliepo'sitionof the plate aY greater or'flesserfrifcti'onlina offered ltofthe passage'goffthefthreadtiereover, according to the character of the The tensioning Ydevice All conical button which` is pierced atits apex may be asimple to loosely receive'the downwardly bent end i' of a Vpositioning pin 13 whichv is driven yvertically into the wood of the lshuttle adjacent the shuttle throat. The pin'13 lfixes* the po.-l

vvsition ot the tensioningv device 11 in the throat,y the loose connection between said tensioning device and pin Y permitting Athe ltensioning device to he vihratedpin a vertical plane by thethread as itis=drawn therebeneath. Where a tensioning` plate 12 is ein- Y,

ployed, the tensioning device 11 may ha've'a downwardly extending tongue 14 formed on its lower side, which tongue is adapted to he'rec'eived in oneorthe other of aV 'pair of oppositely disposed notches l15 in. the lateral edgesv of the tensioning' plate- The Y tongue 1.4: has a double 'function in that it not onlyy inaintainsthe plate and tensioning Vdevice invproper'relation-Ito each other, but

-acts as` a stop orfguard for the! thread when the shuttle is threaded, whereby to prevent ,the Athread -roin sliding laterally past f bacl intothe threading slot 4. Y Y

YVhere the tensioning device isfposit-ioned over ythe eye-piece of the shuttle,- asshown Yin Fig., 6,' it is unnecessary to use--awearpflateasisuch, the flattened upper surtaceof the Veye-piece serv-ingas.a wear and tensioning' surfacebetween whichand the superposed tensioning device `11 the threadV is drawn. Inthis'fa'daptation of iny invention,- Y.the positioning pin-13 is preferablyV extended forwardly,and the cross-har 16 thereoit vliesin substantially the longitudinal-axis of.

'Inl the threading action of the: shuttle, thev thread isV drawn through the. thread'ing slot kpast the end 8.1 ofthe rib 8 of theeyes-piece as a snulobing post. -When threaded, the

' threadrun-s 4direct from the bohhin: between `the tensioning device 11 and the eyepiece or the tensioningg plate12, as the case ymay be, and out through the slot 10 ofv the eye-piece.

'Ihe conical forni of the Vtensioning .device prevents the thready froinrlitting upwardly 'therepasn and' the tongue klathereot prevents escape of the thread laterally loaek into the threading slot 4. VThe thread'fis therefore "coinpelledto run directly through the eye-piece. v

'Various niodiica'tions. in the construction and operation of rnay devi-ceV may obviously be resorted to all'. without departing`I from 4device.

having a laterally disposed `=tongue constitutinga guardelifective to; prethe spirit of my invention if within the linii'ts of the appended claims.

What I therefore claim and desire to secure by Letters Patent is:

1Q In a shuttle having avthreading eye, a positioning pin disposed adjacent to said eye, and a gravitating tension device loosely guided on saidpin and beneath which the thread is drawn into said eye and a dependingguarditongue on the tensionu device.

2. Ina shuttle having athreading eye, ,a positioning pinV .disposed adjacent to i said eye and aconicalgravitating tension device loosely guided onxsaidpin. and beneath which-the thread is drawn into said eye-and av depending guard tongue son. the tension 3. Innshuttle having arthreadingieye, a tensionplate disposed beneath the'path ot the-thread to the eye,l and gravityvtensioning device disposed :above said plate-,and co'- operating therewith, saidgravity .deviceand plate vhaving an interengaging Iproject-ion and recess. i Y y fl. In a-shuttle havinghathreading eye, .a positioningy pin'Y disposed adjacent .to said eye, a tensioning plate in advance oise/id eye, and-a gravitatinfgftension device loosely guided on said pin anzd'hetween which and the tension-plate. the threadis drawn into said'y eye, a depending tongue on saidv tension device, 4said tensioni plate having a recess receiving-said tongue.

' f5; In a shuttle having athreadingeye,.a positioning pin disposed adjacent to said eye, and Iaigravitating tension. device loosely guided on said pin, said .tensioning device depending vent lateral escape of the thread therepast. '6.1x In ashuttle havingvafthreadingyeye, a positioning pinV disposed adjacent to said eye, a tension platein. advance of sai-d eye,

and .a gravitatingftension .deviceI loosely guided lon said pin and .ibetw-een which. and the tension plate the thread isdrawn into said eye, said tensioning device -having'a flaterally disposed;depending tongue constituting a guard effective Ato prevent `lateral 'afs escape of the thread: therepast, andrsaidsplate Y having a `notch toreceive said-tongue and cooperative therewithy to maintain,y the tension device `andy tension' plat-e `in definite: relation to,y each other. l

v In testimonywhereofI :nay: signature,

JEAN BAPTISTE BLAUE-RLIN. g 

